Nozzle



\ Sept. 1.1, 1923-.

- 3,467,807- L. R. NELSON NOZZLE Filed March 1, 1920 [NI/ENTER X .Z 7113/8/90,

Patented Sept. 11, 1.923.

LEWEN B. NELSON, OF PEOBIA, ILLINOIS.

NOZZLE.

Application filed March 1, 1920. Serial No. 362,382.

To aZZ whom it may concern:

Be it known that I, LEWEN R. NELSON,

'citizen of the United States, residing at vPeoria, in the county of Peoria and State opening.

Another object is the construction of a nozzle in which the threads of the stem and shell, which serve as the means for adjusting these two parts relatively, also.

answer, due to a slight separation thereof, to produce a spray at the point of discharge of the nozzle.

Still another object of the invention is to construct a nozzle that can be adjusted for producing a spray or, for throwing a full strean wherein the threads for adjusting the parts of the nozzle are spaced in a peculiar manner acting-together to set up a spiral or whirling action for producing the desired spray fat the discharge opening.

Another object of the invention is that of producing between the two parts of a nozzle coacting spiral parts spaced from one another to produce a spiral passage between them for the water whereby to impart to a stream of water therein a spiral direction of flow to be discharged as a spray.

Again, an object is to construct a valve portion of the nozzle of drawn metal in order to manufacture economically and lighter, and that it may be tougher, as well as free from sand holes.

Besides these objects the invention resides in certain novel detailsof construction to be pointed out herein, as well as the manner of economically producing the nozzle.

Inthe appended drawing Figure 1 is aside elevation of my improved nozzle showing part thereof in longitudinal section. I

Figure 2 is a longitudinal section of a portion of a sleeve section shown in Fig. 1, much enlarged.

Figure 3 is a longitudinal section of parts of the nozzle at the discharge end thereof.

Figure 4: is a transverse section of part of the nozzle at its discharge end.

Figure 5 is a longitudinal section of a sleeve and the stem or valve-portion much enlarged, parts of the latter being broken away to show its form.

The nozzle consists of two preferably one-piece portions adjustable longitudinally one upon the other, one a stem or valveportion represented as a whole by A, the other a sleeve B.

The part A is made of drawn metal and includes an interiorly threaded base C to receive the usual hose fitting D, and a neck or stem-portion E to receive the said sleeve created above the said tapered portion and the extension, said portion constituting a closure for the usual discharge opening K in the sleeve B. The stem is also machined to provide a flat broad thread L slightly less in diamleter than the described neck E, the portion carrying the threads bein of necessity reduced in diameter the depth of said threads The sleeve B is furnished interiorly with a deep thread M corresponding in pitch to the thread L of the stem, while at its inner end the sleeve is provided with any usual stuffing-box structure for maintaining a tight joint between the parts not necessary to be described herein since well known. in the art, and means may be provided for limiting the relative longitudinal movement of the parts in either direction, which is likewise old. I g

It has been stated that thestem orvalve A is hollow. This is shown most clearly in Fig. 5, it being observed in that figure that the threadL is cut in the outer surface thereof. The wall is perforated at J preferably at one or more places, which perforations are preferably, though not necessarily, equally spaced from one another in the direction of the circumference of said stem. The dies for forming this one-piece stem consist of a number of pairs so that the stem can be gradually drawn out to the form shown, its wall being of a uniform gauge throughout ready forthe slight machining required to finish its closed outer end and to create the described thread L. This manner of forming the stem is a matter of economy in the use of metal, and

givesgreater speed of production. Besides this the finished product is tougher by reason of thedrawing,- and can be made much lighter.

Of no little importance is the fact that the finished part will be entirely free from sand holes which frequently occur in casti ngs,'andthe stem by means of the dies can be drawnout as thin as desired consistent With strength, merely leaving sufficient stock for machining.

The threads L and M are preferably continuous or unbroken throughout their lengths and it is observed that the former is very low as compared with the height of the thread M, extending but slightly beyond the periphery of the stem. The thread M is much deeper, standing out considerably further from the surface from which it eX- tends than does the said thread L. This relation of the two threads leaves a considerable space between the top of the thread L and thebottom of the thread Mwhich results in the/creation of a spiral passage X between the stem and sleeve.

The water leaving certain of the perforations under pressure enters the said passage X and follows itand is thus started in a whirl upon the inner surface of the sleeve,

finally reaching and passing from the discharge opening at K in a perfectly formed spray. This result will obtain in whatever position the perforations may be so long as they are inward from the outermost extremity of the said threadM withone or more ofthem opposite the passage.

lilowever, should the perforations lie outward from the thread M or between it and the discharge opening K, which results when the sleeve is turned down toward the base C, the water discharged from the opening K will be in a full or solid stream I The peculiar form of the terminal end slight beveling of the of the stem co-operatin with the walls of the discharge opening K of the sleeve gives a more solid, unbroken and less ragged stream. than otherforms of nozzles. That is'to say, the angle H created at the place of meeting of the extension H and the tapered valve-portion G of the stem when lying just inside of the opening K of the shell, as shown in Fig. 3, influences the flow of water, In its passage through the opening K over the surfaces of the said tap-er and extension the water is formed into a round solid stream which by reason of its form is thrown a greater distance from the-nozzle than from other types of nozzles under the same conditions as to size of opening and pressure, the action being assisted by a inner corner of the said opening K. i

' There is another advantage in the use of'my form of nozzle. In nozzles as constructed heretofore, the stemportion usually terminates in a head having a shoulder behind it to receive the water against it as discharged. That is to say, after the head has passed outside the discharge opening the water issuing from the opening of the nozzle is thrown against the shoulder to create a spray. If, now, the head is not properly centered, and it usually is not, the spray will not be uniform but heavier at one side than the other which is a disadvantage in use. Y

My nozzle, however, does not depend upon the-stem or a head thereon to produce the spray. The spray is uniform no matter what the condition of the nozzle-parts may be.

Minor changes may be made in the construct1on of my nozzle as may suggest themselves, but what I claim is:

1. A hose nozzle includingin its construction a hollow stem adapted for attachment at one end to a hose and closed at its other end, a sleeve enclosing the stem and having an opening atone end, the stem and sleeve engaging one another and movable relatively in a longitudinal direction, there being a spirally arranged groove between the two parts open at its ends and closed therebetween, there being an opening in the wall of the stem adapted in one position of the latter to lie opposite the groove and in another position to lie between one end of the groove and the discharge orifice or opening of the sleeve.

2. A hose nozzle including in its construction a hollow stem adapted for. attachment at one end to a hose and closed at its other end, a sleeve enclosing the stem and having a discharge orifice in one end,'the' sleeve and stem having threaded engagement whereby to adjust them with respectto one another in a longitudinal direction, the thread of the sleeve terminating in spaced relation to the discharge orifice, there being a separation space between the threads of the described parts forming a spiral passage open at its ends but closed therebetween, there being an opening in the wall of the stem adapted in one position of the latter to lie opposite the groove, and in another position to lie beyond the groove and between it and the discharge orifice of said sleeve.

A hose nozzle including in its construction a hollow stem adapted. for attachment to one end to a hose and closed at its other end, a sleeve enclosing the stem and having a discharge orifice in one end, the sleeve and stem having threaded engagement whereby to adjust them with respect to one another in a longitudinal direction, there being a spiral passage between the sleeve and stem closed throughout its length and opening at its ends within said sleeve, there being an opening in the wall of the stem adapted in one position of the latter to lie opposite the passage for the discharge of water into it, and in another position to lie between the discharge orifice of the sleeve and the adjacent opening of the said passage.

4;. In a nozzle, a hollow stem or valve-portion for attachment to a hose, closed at one end and provided with a thread on its periphery, a sleeve having a single thread in its interior to receive the thread of the stem, the two threads providing for adjustment of the parts relatively and constructed to create a spiral passage between them and the stem and sleeve closed between the successive turns thereof, and an opening in the side of the stem adapted to be brought in register with the said passage.

rection as the pitch of said threads, there also being a discharge opening in the side of the stem adapted to be brought opposite the passage.

6. The combination in a nozzle, of a hollow stem closed at one end and adapted for attachment at its other end to a hose, said stem having an unbroken thread on its periphery, a sleeve also having an unbroken thread for receiving the thread of the stem and having a discharge orifice, there being a passage following the course of said threads for the conveyance of water therethrough, the terminal opening of the passage directing water in the same general direction as the pitch of said threads, there being a discharge opening in the side of the stem for the discharge of water, the parts being adapted for adjustment relatively whereby water may be discharged from said opening into the passage, or into the bore of the said sleeve between the discharge terminal of said passage and said dischar e orifice.

In testimony whereof afiiX my signature in presence of two witnesses.

LEWEN R. NELSON.

Witnesses:

ETHEL OLANDER, R. E. SUTI-IERLAND. 

